export const lowercase = str => {
	if (!str) return ''
	str = str.toString()
	return str.toLowerCase()
}

export const uppercase = str => {
	if (!str) return ''
	str = str.toString()
	return str.toUpperCase()
}

export const capitalize = str => {
	if (!str) return ''
	str = str.toString()
	return str[0].toUpperCase() + str.slice(1)
}
